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丙硫菌唑与抑霉唑混剂对稻恶苗病菌的联合毒力及田间防效
Prothioconazole and Imazalil Mixtures: Co-toxicity and Field Control Efficacy on Fungus of Rice Bakanae Disease
为探明丙硫菌唑与抑霉唑混剂对稻恶苗病菌的联合毒力及田间防效,开发防治稻恶苗病的新药剂,本研究以藤仓镰孢菌为试验对象,采用菌丝生长速率法分别检测了丙硫菌唑、抑霉唑及其7种配比混剂对藤仓镰孢菌的毒力,并进行了最佳配比制剂的田间药效试验。结果表明,丙硫菌唑与抑霉唑配比为1:1时增效系数为1.9778,增效作用最显著。田间药效试验中,5%丙硫菌唑·抑霉唑WS 500倍液在苗期、分蘖期和抽穗期的防效分别为91.08%、92.85%和89.52%,防效均高于4.23%甲霜·种菌唑ME 1000倍液和12%氟啶·戊·杀螟WS 1000倍液的防效,并且各处理对水稻种子萌发和成苗安全。5%丙硫菌唑·抑霉唑WS对稻恶苗病防效优良,对水稻生长安全,可开发为稻恶苗病防治药剂。
To explore the co-toxicity and field control efficacy of the mixtures of prothioconazole and imazalil on rice bakanae disease, and develop a new reagent for controlling rice bakanae disease, Fusarium fujikuroi was used as material in this study. The toxicity of prothioconazole, imazalil and their seven mixtures on F. fujikuroi was detected by using mycelium growth rate method, and field control tests with the optimum formulation were conducted. The results showed that the synergistic coefficient was 1.9778 when the mixture ratio of prothioconazole and imazalil was 1:1, the synergistic effect was the most significant. In the field control efficacy test, the control efficacy of 500 dilution of 5% prothioconazole·imazalil WS at seedling stage, tillering stage and heading stage were 91.08%, 92.85%, and 89.52%, respectively, which were higher than that of 1000 dilution of 4.23% metalaxyl·ipconazole ME or 1000 dilution of 12% fluazinam·tebuconazole·cartap WS, and all treatments were safe to the seed germination and seedling formation of rice. In conclusion, 5% prothioconazole·imazalil WS could provide excellent control efficacy on rice bakanae disease and is safe for rice growth, which can be developed as a rice bakanae disease control agent.
水稻恶苗病 / 丙硫菌唑 / 抑霉唑 / 联合毒力 / 防治效果 {{custom_keyword}} /
rice bakanae disease / prothioconazole / imazalil / co-toxicity / control efficacy {{custom_keyword}} /
表1 不同施肥处理的肥料投入量及施肥方式 kg/hm2 |
处理 | 基肥(种肥同播) | 追肥(表层撒施) | 氮磷养分投入量 | |||
---|---|---|---|---|---|---|
品种 | 用量 | 品种 | 用量 | N | P2O5 | |
T1 | — | — | — | — | 0 | 0 |
T2 | 复合肥 | 495 | 尿素 | 132 | 150 | 60 |
T3 | 缓释肥 | 600 | — | — | 150 | 60 |
注:“—”代表不施肥。 |
表2 不同施肥处理的氮磷流失情况 |
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注:同列不同字母表示处理间差异显著(P<0.05);流失量为五次径流液样品的总和。 |
[1] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[2] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[3] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[4] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[5] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[6] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[7] |
陈夕军, 卢国新, 童蕴慧, 等. 水稻恶苗病菌对三种浸种剂的抗性及抗药菌株的竞争力[J]. 植物保护学报, 2007,34(4):425-430.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[8] |
陈宏州, 杨红福, 姚克兵, 等. 藤仓赤霉菌的抗药性及对不同杀菌剂敏感性的相关分析[J]. 中国农学通报, 2017,33(33):135-141.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[9] |
刁亚梅, 倪珏萍, 马亚芳, 等. 创造杀菌剂氰烯菌酯的应用研究[J]. 植物保护, 2007,33(4):121-123.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[10] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[11] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[12] |
陈宏州, 杨红福, 姚克兵, 等. 水稻恶苗病病原菌鉴定及室内药剂毒力测定[J]. 植物保护学报, 2018,45(6):1356-1366.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[13] |
赵斌, 何绍江. 微生物学实验[M]. 北京: 科学出版社, 2002: 251.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[14] |
中华人民共和国农业行业标准. 农药室内生物测定试验准则一杀菌剂第2部分: 抑制病原真菌菌丝生试验[S].北京:中国农业出版社, 2006.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[15] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[16] |
赵海红. 六种化学农药防治水稻恶苗病效果[J]. 作物杂志, 2014,(3):136-138.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[17] |
瞿唯钢, 杨淞霖, 王会利, 等. 3种杀菌剂及其复配剂对斑马鱼的急性毒性[J]. 生态毒理学报, 2017,12(2):233-237.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[18] |
关爱莹, 李林, 刘长令. 新型三唑硫酮类杀菌剂丙硫菌唑[J]. 农药, 2003,42(9):42-43,41.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[19] |
郑媛萍, 周连柱, 孔繁芳, 等. 山东蓬莱葡萄灰霉菌对7种杀菌剂的抗药性检测[J]. 植物保护, 2019,45(1):164-169.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[20] |
朱祥民, 王士奎. 10%寡聚酸碘·丙硫菌唑悬浮剂防治水稻恶苗病试验[J]. 农药, 2019,58(3):218-220.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[21] |
朱友理, 何东兵, 曹书培, 等. 不同浸种剂和浓度对5个水稻品种发芽率和幼苗生长的安全性研究[J]. 江苏农业科学, 2019,47(7):79-83.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[22] |
陈培红, 朱祥林, 杨本香, 等. 新型水稻浸种剂对恶苗病及干尖线虫病的防治效果[J]. 江西农业学报, 2014,26(7):45-49.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[23] |
石星华, 周宇杰, 王超, 等. 水稻恶苗病防治新药剂比较试验[J]. 浙江农业科学, 2014(14):1838-1840.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
{{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
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